The mechanical sampling and preparation system is suitable for sampling and preparation in the middle part of the coal. The sub samples collected by the middle sampling machine are divided into two channels. One channel is automatically canned after sample preparation to collect general large samples for moisture and composition analysis, and the other channel is online weighed after screening.

      Equipped with special instruments and equipment in the manual sample preparation room, the collected large samples can be prepared into chemical analysis samples, moisture determination, fine-grained determination, and undertake the manual sample preparation after the failure of automatic mechanical sample preparation system.

      It can realize the automation, intensive and intelligent of sampling and preparation system, realize unattended in the whole process of sampling and preparation, and separate people and samples, reaching the leading level in China.

      All crushers and reducers in the system are equipped with calibration outlets for single machine performance test.

      The sieve plate is made of high-strength wear-resistant stainless steel plate, and its thickness and square hole sieve round angle meet the ISO standard.

      The designed sampling and preparation system can minimize the amount of air circulation in the system, so as to avoid the moisture change and loss of coal sample.

Sample preparation unit

Residual material return device

Electric control room